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Continuous wave (CW) operation of long wave infrared (LWIR) quantum cascade lasers (QCLs) is achieved up to a temperature of 303 K. For room temperature CW operation, the wafer with… Click to show full abstract
Continuous wave (CW) operation of long wave infrared (LWIR) quantum cascade lasers (QCLs) is achieved up to a temperature of 303 K. For room temperature CW operation, the wafer with 35 stages was processed into buried heterostructure lasers. For a 2-mm-long and 10-μm-wide laser with high-reflectivity (HR) coating on the rear facet, CW output power of 45 mW at 283 K and 9 mW at 303 K is obtained. The lasing wavelength is around 9.4 μm locating in the LWIR spectrum range.
Keywords:
temperature;
continuous wave;
room temperature;
wave operation;
operation;
quantum cascade
Journal Title: Journal of Semiconductors
Year Published: 2018
Link to full text (if available)
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Journal Title: Journal of Semiconductors
Year Published: 2018
Link to full text (if available)
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recommendations!